Senior Propulsion Engineer (Aerospace)

Location: Fully onsite at the Centennial, Colorado or Long Beach, California office. Remote work may be considered case by case for exceptionally qualified candidates outside a reasonable commuting distance, but must be performed from an approved location within the United States. Remote employees travel to a primary office approximately once a month.

Base salary: $165,000–$245,000 annually, plus equity and benefits.

Company

hirify.global develops autonomous spacecraft, advanced payloads, mission software, and space-based interceptors for U.S. and allied space security.

What you will do

• Design, analyze, optimize, build, and test propulsion systems and components for advanced satellites and missile defense vehicles.
• Take propulsion and spacecraft subsystems from concept through flight.
• Review system-level models and drawings through detailed piece-part designs.
• Collaborate with structural, mechanical, thermal, and avionics engineers to validate designs against mission requirements.
• Improve design efficiency, manufacturability, reliability, and system performance.
• Present technical content to internal and external customers while mentoring propulsion engineers.

Requirements

• Bachelor’s degree in Mechanical or Aerospace Engineering.
• 6+ years of professional experience with launch or space vehicles.
• Experience with stage systems, rocket engines, flight valves, or detailed fluid system architecture and analysis.
• Propulsion test experience, including hot-fire or pressure testing, vehicle-level checkouts, and propellant loading.
• Experience with pressurization system sizing, water hammer analysis, pressure budgets, FMECAs, and FDIR architecture.
• Ability to maintain or obtain TS//SCI clearance and meet U.S. ITAR eligibility requirements.

Nice to have

• Master’s degree in Mechanical Engineering.
• Experience in space systems development and production, project leadership, valve or propellant tank design, and manufacturing.
• Experience with mechanical design for propulsion systems, mechanisms, or optical payloads.
• Startup or similarly dynamic environment experience.
• Familiarity with the full vehicle lifecycle from concept through production.

Culture & Benefits

• Company-paid medical, dental, and vision coverage with HSA/HRA options.
• Flexible time off or up to 25 days of accrued PTO for non-exempt employees, plus paid holidays, parental leave, and sick leave.
• 401(k), fitness reimbursement, equity participation, catered lunches, and snacks for in-office employees.
• Travel of up to 20% to the Long Beach factory and vendor sites.